Notification of the first sighting of sand steenbras Lithognathus mormyrus (Linnaeus, 1758) and modern species diversity of the family Sparidae at the Georgian and Crimean Black Sea coasts

Archil Guchmanidze, Alexander Boltachev

Fisheries and Black Sea Monitoring Center of National Environmental Agency. 11, Sherif Khimshiashvili ave., Apt. 5, 6010, Batumi, GEORGIA
Institute of Marine Biological Research of RAS, 2, Nakhimov ave., Sevastopol 299011, Crimea, RUSSIAN FEDERATION


The results of ichthyological investigations on the species diversity of Sparidae family in the Black Sea coastal zone of Georgia and Crimean Peninsula in the last 15 years are presented. The first record of and steenbras Lithognathus mormyrus (Linneus, 1758), new for Georgian waters and rare for the Black Sea, is described in details. The increase in species diversity of the Sparidae family representatives is discussed, as well as the increase in the number of records and abundance of salema Sarpa salpa and seabream Sparus aurata near Caucasus (Georgia) and Crimea. It is concluded that this process is connected with natural penetration of new and rare species to the Black Sea from the Mediterranean Sea (“mediterranization”), and in the last years it can be connected with intensive cultivation of the Mediterranean seabreams in marine farms in Turkey.

Keywords: First notification, mediterranization, species diversity, Georgia, Crimea


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